diff --git a/.gitignore b/.gitignore
index 8ea91a8..564aed5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,4 @@ hs_err_pid*
 replay_pid*
 
 /.metadata/
+/bin/
diff --git a/em-oop/src/BasicCheck3.java b/em-oop/src/BasicCheck3.java
new file mode 100644
index 0000000..9b617a5
--- /dev/null
+++ b/em-oop/src/BasicCheck3.java
@@ -0,0 +1,28 @@
+
+public class BasicCheck3 {
+	public static void main(String[] args) {
+		Item[] items = new Item[3];
+		items[0] = new Item();
+		items[1] = new Item();
+		items[2] = new Item();
+
+		items[0].name = "ノート";
+		items[1].name = "消しゴム";
+		items[2].name = "鉛筆";
+
+		items[0].price = 120;
+		items[1].price = 80;
+		items[2].price = 60;
+
+		items[0].stock = 50;
+		items[1].stock = 30;
+		items[2].stock = 100;
+
+		for (int i = 0; i < items.length; i++) {
+			items[i].sell(5);
+			System.out.println(items[i].name + " " + items[i].price + "円 残り" + items[i].stock + "個 ");
+		}
+
+	}
+
+}
diff --git a/em-oop/src/Item.java b/em-oop/src/Item.java
new file mode 100644
index 0000000..f9b8a9f
--- /dev/null
+++ b/em-oop/src/Item.java
@@ -0,0 +1,10 @@
+
+public class Item {
+	String name;
+	int price;
+	int stock;
+	public void sell(int amount) {
+		this.stock = this.stock - amount;
+	}
+
+}